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Mailbox variable
Object
ID
Object Name
Read/
Write
Change-
able De-
scription
Non-vola-
tile RAM
Store
Drive Par.
Alarm notifi-
cation
Triggers Bus
Timeout
MBV:0 Mailbox Write W/R No Non
PCV part of
the send
drive mes-
sage
No No
MBV:1 Mailbox Read R No Non
PCV part of
the receive
drive mes-
sage
No No
Real Time Clock Variable
The adjustable frequency drive has a built-in real-time clock. The standard real-time clock has no battery backup
function (for real-time clock battery backup, selected TR200 option modules are available), which will lead to a
time stop if the drive is unpowered. Some BACnet Masters can be programmed to send out the date and time
as a broadcast message on a regular basis. The BACnet will update the real-time clock of the drive if it receives
this type of message: “Message”.
How to Control the Adjustable Frequency
Drive
5-14 TR200 BACnet